Trial Outcomes & Findings for Effects of a Pectoralis Minor Muscle Stretching Protocol (NCT NCT01956240)

NCT ID: NCT01956240

Last Updated: 2015-05-19

Results Overview

The change of the pectoralis minor muscle will be evaluated with a tape measure and electromagnetic device. The length of the muscle will be recorded in centimeters.

Recruitment status

COMPLETED

Study phase

PHASE4

Target enrollment

97 participants

Primary outcome timeframe

6 weeks after stretching

Results posted on

2015-05-19

Participant Flow

Fliers posted in the local university setting and community were used to recruit symptomatic individuals, between february of 2012 and January of 2014. Asymptomatic individuals were recruited through personal contacts of the investigators.

If participants did not come back to second evaluation, they were not assignments to groups.

Participant milestones

Participant milestones
Measure
Asymptomatic Subjects
The stretching will be performed with the subject standing, with 90° of arm abduction and 90° of elbow flexion and palm on a flat planar surface. The subject then will place the leg opposite to the flat surface in front of the other with slight knee flexion and tilt the trunk forward like a rigid block and rotate it slightly increasing the horizontal abduction at the shoulder. This procedure will be done 4 times for 1 min and 30s interval between repetitions.
Subjects With Shoulder Pain
The stretching will be performed with the subject standing, with 90° of arm abduction and 90° of elbow flexion and palm on a flat planar surface. The subject then will place the leg opposite to the flat surface in front of the other with slight knee flexion and tilt the trunk forward like a rigid block and rotate it slightly increasing the horizontal abduction at the shoulder. This procedure will be done 4 times for 1 min and 30s interval between repetitions.
Overall Study
STARTED
48
49
Overall Study
COMPLETED
25
25
Overall Study
NOT COMPLETED
23
24

Reasons for withdrawal

Reasons for withdrawal
Measure
Asymptomatic Subjects
The stretching will be performed with the subject standing, with 90° of arm abduction and 90° of elbow flexion and palm on a flat planar surface. The subject then will place the leg opposite to the flat surface in front of the other with slight knee flexion and tilt the trunk forward like a rigid block and rotate it slightly increasing the horizontal abduction at the shoulder. This procedure will be done 4 times for 1 min and 30s interval between repetitions.
Subjects With Shoulder Pain
The stretching will be performed with the subject standing, with 90° of arm abduction and 90° of elbow flexion and palm on a flat planar surface. The subject then will place the leg opposite to the flat surface in front of the other with slight knee flexion and tilt the trunk forward like a rigid block and rotate it slightly increasing the horizontal abduction at the shoulder. This procedure will be done 4 times for 1 min and 30s interval between repetitions.
Overall Study
Lost to Follow-up
6
20
Overall Study
Adverse Event
17
4

Baseline Characteristics

Effects of a Pectoralis Minor Muscle Stretching Protocol

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Asymptomatic Subjects
n=48 Participants
The stretching will be performed with the subject standing, with 90° of arm abduction and 90° of elbow flexion and palm on a flat planar surface. The subject then will place the leg opposite to the flat surface in front of the other with slight knee flexion and tilt the trunk forward like a rigid block and rotate it slightly increasing the horizontal abduction at the shoulder. This procedure will be done 4 times for 1 min and 30s interval between repetitions.
Subjects With Shoulder Pain
n=49 Participants
The stretching will be performed with the subject standing, with 90° of arm abduction and 90° of elbow flexion and palm on a flat planar surface. The subject then will place the leg opposite to the flat surface in front of the other with slight knee flexion and tilt the trunk forward like a rigid block and rotate it slightly increasing the horizontal abduction at the shoulder. This procedure will be done 4 times for 1 min and 30s interval between repetitions.
Total
n=97 Participants
Total of all reporting groups
Age, Categorical
<=18 years
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Age, Categorical
Between 18 and 65 years
48 Participants
n=5 Participants
49 Participants
n=7 Participants
97 Participants
n=5 Participants
Age, Categorical
>=65 years
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Sex: Female, Male
Female
26 Participants
n=5 Participants
28 Participants
n=7 Participants
54 Participants
n=5 Participants
Sex: Female, Male
Male
22 Participants
n=5 Participants
21 Participants
n=7 Participants
43 Participants
n=5 Participants
Region of Enrollment
Brazil
48 participants
n=5 Participants
49 participants
n=7 Participants
97 participants
n=5 Participants

PRIMARY outcome

Timeframe: 6 weeks after stretching

The change of the pectoralis minor muscle will be evaluated with a tape measure and electromagnetic device. The length of the muscle will be recorded in centimeters.

Outcome measures

Outcome measures
Measure
Asymptomatic Subjects
n=48 Participants
The stretching will be performed with the subject standing, with 90° of arm abduction and 90° of elbow flexion and palm on a flat planar surface. The subject then will place the leg opposite to the flat surface in front of the other with slight knee flexion and tilt the trunk forward like a rigid block and rotate it slightly increasing the horizontal abduction at the shoulder. This procedure will be done 4 times for 1 min and 30s interval between repetitions.
Subjects With Shoulder Pain
n=49 Participants
The stretching will be performed with the subject standing, with 90° of arm abduction and 90° of elbow flexion and palm on a flat planar surface. The subject then will place the leg opposite to the flat surface in front of the other with slight knee flexion and tilt the trunk forward like a rigid block and rotate it slightly increasing the horizontal abduction at the shoulder. This procedure will be done 4 times for 1 min and 30s interval between repetitions.
Pectoralis Minor Length After Pectoralis Minor Stretching Protocol
16.38 centimeters
Standard Deviation 1.46
16.87 centimeters
Standard Deviation 1.90

SECONDARY outcome

Timeframe: 6 weeks of stretching

The scapular kinematics will be evaluated with electromagnetic device. The changes in the scapular kinematics will be described in degrees.

Outcome measures

Outcome measures
Measure
Asymptomatic Subjects
n=25 Participants
The stretching will be performed with the subject standing, with 90° of arm abduction and 90° of elbow flexion and palm on a flat planar surface. The subject then will place the leg opposite to the flat surface in front of the other with slight knee flexion and tilt the trunk forward like a rigid block and rotate it slightly increasing the horizontal abduction at the shoulder. This procedure will be done 4 times for 1 min and 30s interval between repetitions.
Subjects With Shoulder Pain
n=25 Participants
The stretching will be performed with the subject standing, with 90° of arm abduction and 90° of elbow flexion and palm on a flat planar surface. The subject then will place the leg opposite to the flat surface in front of the other with slight knee flexion and tilt the trunk forward like a rigid block and rotate it slightly increasing the horizontal abduction at the shoulder. This procedure will be done 4 times for 1 min and 30s interval between repetitions.
Scapular Kinematics After Pectoralis Minor Stretching Protocol
30 degree
Standard Deviation 5
40 degree
Standard Deviation 5

Adverse Events

Asymptomatic Subjects

Serious events: 23 serious events
Other events: 15 other events
Deaths: 0 deaths

Subjects With Shoulder Pain

Serious events: 24 serious events
Other events: 7 other events
Deaths: 0 deaths

Serious adverse events

Serious adverse events
Measure
Asymptomatic Subjects
n=48 participants at risk
The stretching will be performed with the subject standing, with 90° of arm abduction and 90° of elbow flexion and palm on a flat planar surface. The subject then will place the leg opposite to the flat surface in front of the other with slight knee flexion and tilt the trunk forward like a rigid block and rotate it slightly increasing the horizontal abduction at the shoulder. This procedure will be done 4 times for 1 min and 30s interval between repetitions.
Subjects With Shoulder Pain
n=49 participants at risk
The stretching will be performed with the subject standing, with 90° of arm abduction and 90° of elbow flexion and palm on a flat planar surface. The subject then will place the leg opposite to the flat surface in front of the other with slight knee flexion and tilt the trunk forward like a rigid block and rotate it slightly increasing the horizontal abduction at the shoulder. This procedure will be done 4 times for 1 min and 30s interval between repetitions.
Social circumstances
Desistance
47.9%
23/48
49.0%
24/49

Other adverse events

Other adverse events
Measure
Asymptomatic Subjects
n=48 participants at risk
The stretching will be performed with the subject standing, with 90° of arm abduction and 90° of elbow flexion and palm on a flat planar surface. The subject then will place the leg opposite to the flat surface in front of the other with slight knee flexion and tilt the trunk forward like a rigid block and rotate it slightly increasing the horizontal abduction at the shoulder. This procedure will be done 4 times for 1 min and 30s interval between repetitions.
Subjects With Shoulder Pain
n=49 participants at risk
The stretching will be performed with the subject standing, with 90° of arm abduction and 90° of elbow flexion and palm on a flat planar surface. The subject then will place the leg opposite to the flat surface in front of the other with slight knee flexion and tilt the trunk forward like a rigid block and rotate it slightly increasing the horizontal abduction at the shoulder. This procedure will be done 4 times for 1 min and 30s interval between repetitions.
Musculoskeletal and connective tissue disorders
No shortened pectoralis minor
31.2%
15/48
14.3%
7/49

Additional Information

Ms Dayana Patricia Rosa

Methodist University of Piracicaba

Phone: +55 16 3306-6696

Results disclosure agreements

  • Principal investigator is a sponsor employee
  • Publication restrictions are in place